101-devtest-labs - generate the vm name with random value (#272)

* 101-devtest-labs - update the vm name

quickstart/101-devtest-labs/main.tf

@@ -2,6 +2,13 @@ resource "random_pet" "rg_name" {
   prefix = var.resource_group_name_prefix
 }
 
+resource "random_string" "vm_suffix" {
+  length  = 5
+  upper   = false
+  special = false
+  numeric = false
+}
+
 resource "azurerm_resource_group" "rg" {
   name     = random_pet.rg_name.id
   location = var.resource_group_location
@@ -34,7 +41,7 @@ resource "azurerm_dev_test_virtual_network" "vnet" {
 }
 
 resource "azurerm_dev_test_windows_virtual_machine" "vm" {
-  name                   = var.vm_name
+  name                   = "ExampleVM-${random_string.vm_suffix.result}"
   lab_name               = azurerm_dev_test_lab.lab.name
   lab_subnet_name        = "Dtl${var.lab_name}Subnet"
   resource_group_name    = azurerm_resource_group.rg.name

quickstart/101-devtest-labs/readme.md

@@ -17,7 +17,6 @@ This template deploys a Windows virtual machine within an Azure DevTest Lab.
 | `resource_group_name_prefix` | Prefix of the resource group name that's combined with a random ID so name is unique in your Azure subscription. | rg |
 | `resource_group_location` | Location of the resource group. | eastus |
 | `lab_name` | The name of the new lab instance to be created. | |
-| `vm_name` | The name of the VM to be created. | |
 | `vm_size` | The size of the VM to be created. | Standard_D4_v3 |
 | `user_name` | The username for the local account that will be created on the new VM. | |
 | `password` | The password for the local account that will be created on the new VM. | |

quickstart/101-devtest-labs/variables.tf

@@ -16,12 +16,6 @@ variable "lab_name" {
   default     = "ExampleLab"
 }
 
-variable "vm_name" {
-  type        = string
-  description = "The name of the vm to be created."
-  default     = "example-vm"
-}
-
 variable "vm_size" {
   type        = string
   description = "The size of the vm to be created."